A rotary kiln with adjustable tilt angle and variable speed

Abstract

The present invention relates to a rotary kiln, and in particular to a rotary kiln with adjustable speed and adjustable inclination angle, comprising a rotary kiln assembly, wherein the rotary kiln assembly comprises a kiln, a gas distribution cabinet, a discharge collection box, a lifting platform and a base, wherein the gas distribution cabinet is arranged on the base, and the discharge collection box is arranged on one side of the base. The present invention facilitates the adjustment of the inclination angle of the kiln through the cooperation of a driving member and a mandrel, and facilitates limiting the speed of the expansion and contraction of the piston rod and the mandrel of the driving member through the cooperation of an inclined wedge telescopic member, a bidirectional damping rod and an adjusting rod, so that the inclination angle of the kiln can be adjusted while limiting the speed of adjusting the inclination angle of the kiln. Only a small damping is required to limit the speed of the piston rod of the driving member, and the bidirectional damping rod at the edge can be removed, thereby achieving the effect of reducing the damping, thereby increasing the speed of the driving member adjusting the angle of the kiln.

Description

Technical Field

[0001] The invention relates to a rotary kiln, in particular to a rotary kiln with adjustable speed and adjustable inclination angle. Background Art

[0002] As an indispensable heat treatment equipment in modern industry, rotary kiln is widely used in cement, metallurgy, chemical industry and other industries. Its core function is to achieve uniform heating and reaction of materials through continuous rotation combined with appropriate tilt angle. However, in the long-term use and technological development, although there have been many technical attempts to improve the tilt angle of rotary kiln, there are still significant challenges in controlling the speed of tilt angle change.

[0003] At present, the inventors have found that the following problems have not been solved in the prior art: adjusting the tilt angle of the rotary kiln by means of a screw is not simple and direct enough, and the existing adjustment device usually only focuses on the setting of the final tilt angle, while ignoring the management of the speed during the adjustment process, which results in the speed being uncontrollable when changing the tilt angle. Adjusting the tilt angle of the rotary kiln too fast or too slow will cause material flow disorder, affecting the heat treatment effect and product quality. To this end, we propose a rotary kiln with a variable speed for adjusting the tilt angle to solve the above-mentioned problems. Summary of the invention

[0004] In view of the above problems existing in the prior art, the present invention is proposed.

[0005] Therefore, the technical problem to be solved by the present invention is that it is inconvenient to limit the speed of the change of the inclination angle of the existing rotary kiln when adjusting the inclination angle.

[0006] To solve the above technical problems, the present invention provides the following technical solutions: a rotary kiln with adjustable inclination angle and variable speed, comprising: a rotary kiln assembly, wherein the rotary kiln assembly comprises a kiln, a gas distribution cabinet, a discharge collection box, a lifting platform and a base, wherein the gas distribution cabinet is arranged on the base, the discharge collection box is arranged on one side of the base, the lifting platform is arranged on the top side of the base, and the kiln is arranged on the top of the base; an angle adjustment speed change assembly, wherein the angle adjustment speed change assembly comprises a driving member, an inclined wedge telescopic member, a mounting platform, a bidirectional damping rod, a push rod and an adjusting rod, wherein the bottom of the driving member is hinged to the base, the top of the push rod is hinged to one side of the bottom of the lifting platform, the top of the piston rod of the driving member is fixedly connected to the bottom of the mounting platform, the inclined wedge telescopic member is arranged in the mounting platform, two pairs of the bidirectional damping rods are respectively arranged on both sides of the driving member, the bottom of the push rod is fixedly connected to the top of the mounting platform, and the adjusting rod is fixedly arranged on the top of the piston rod of the bidirectional damping rod.

[0007] As a preferred solution of the rotary kiln with adjustable inclination angle and variable speed described in the present invention, a pair of moving blocks 1 are slidably arranged on one side of the inner cavity of the inclined wedge telescopic member, an advance and retreat block is slidably arranged on the pair of moving blocks 1, a damping bearing is fixedly arranged on one side of the advance and retreat block, an insertion rod is fixedly arranged on one side of the moving block 1, the insertion rod movably passes through the adjusting rod, an internal threaded tube is fixedly passed through one side of the inclined wedge telescopic member, a screw is threadedly passed through the internal threaded tube, and one end of the screw is fixedly inserted into the inner ring of the damping bearing.

[0008] As a preferred solution of the rotary kiln with adjustable inclination angle and variable speed described in the present invention, a limiting groove 1 is provided on the top and bottom of the inner wall of the inclined wedge telescopic member, a limiting convex rod 4 is respectively provided on the top and bottom of the moving block 1, a limiting groove 2 is provided on the inclined surface of the moving block 1, and limiting convex rods 3 are respectively provided on both sides of the advance and retreat block, the limiting convex rod 3 is movably inserted into the limiting groove 2, and the limiting convex rod 4 is movably inserted into the limiting groove 1.

[0009] As a preferred solution of the rotary kiln with adjustable inclination angle and variable speed described in the present invention, a pair of T-shaped grooves are respectively opened at the top and bottom of the inner wall of the mounting platform, and the two side ends of the mounting platform are respectively provided with support rods, and the two sides of the top and bottom of the inclined wedge telescopic member are respectively provided with T-shaped rods, and the T-shaped rods are movably inserted into the T-shaped grooves, and the mounting platform and the T-shaped rods are fixedly connected by a plurality of bolts.

[0010] As a preferred solution of the rotary kiln with adjustable inclination angle and variable speed described in the present invention, wherein: fixed plates are fixedly arranged on both sides of the driving member, a groove seat 2 is fixedly arranged on the end of one side of the fixed plate, and the top and bottom of the side surfaces of the groove of the groove seat 2 are respectively provided with blocks, a main rod is slidably arranged in the groove seat 2, a plurality of limit stop rods are fixedly arranged on one side of the main rod, a plurality of limit holes 1 are arranged in the groove seat 2, the limit stop rods movably pass through the limit holes 1, and a limit plate 1 is provided on the side of the bidirectional damping rod close to the driving member, and the limit stop rod movably passes through the limit plate 1.

[0011] As a preferred solution of the rotary kiln with adjustable inclination angle and variable speed described in the present invention, a handle is fixedly provided at the other end of the screw, a follower rod is fixedly provided on the moving block 1, a push block is provided at the bottom of one side of the follower rod, and the push block is movably inserted into the groove seat 2.

[0012] As a preferred solution of the rotary kiln with adjustable inclination angle and variable speed described in the present invention, there are a plurality of limiting side rods on both sides of the main rod, a plurality of strip holes are opened on both sides of the second slot seat, and the limiting side rods are movable through the strip holes.

[0013] As a preferred solution of the rotary kiln with adjustable speed and adjustable inclination angle described in the present invention, the two side ends of the bidirectional damping rod with the limiting plate 1 are respectively provided with a limiting convex rod 1, and the bidirectional damping rod and the limiting convex rod 1 are movably inserted on the outside of the driving member.

[0014] As a preferred solution of the rotary kiln with adjustable inclination angle and variable speed described in the present invention, the two side ends of the bidirectional damping rod with a limiting plate 1 are provided with limiting convex rods 2, and the two side ends of the other bidirectional damping rod are provided with limiting groove seats 1, and the limiting groove seats 1 are movably sleeved on the limiting convex rods 2.

[0015] As a preferred solution of the rotary kiln with adjustable inclination angle and variable speed described in the present invention, one side of the bidirectional damping rod with a limiting groove seat is provided with a positioning block, and the positioning block and the limiting plate are fixedly connected by a bolt.

[0016] The beneficial effects of the present invention are as follows: the cooperation between the driving member and the top rod makes it easy to adjust the inclination angle of the kiln; the cooperation between the inclined wedge telescopic member, the bidirectional damping rod and the adjusting rod makes it easy to limit the speed of the piston rod and the top rod of the driving member, so that the speed of adjusting the inclination angle of the kiln can be limited while adjusting the inclination angle of the kiln; only a small damping is required to limit the speed of the piston rod of the driving member, and the bidirectional damping rod at the edge can be removed to achieve the effect of reducing the damping, thereby increasing the speed of adjusting the kiln angle of the driving member; the problem of controllable speed when changing the inclination angle is ensured, and the problem of too fast or too slow adjustment of the inclination angle of the rotary kiln causing material flow disorder and affecting the heat treatment effect and product quality is avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them:

[0018] Figure 1 It is a structural schematic diagram of the rotary kiln assembly and the angle adjustment speed change assembly of the present invention;

[0019] Figure 2 It is a structural schematic diagram of the angle adjustment speed change assembly of the present invention;

[0020] Figure 3 It is a structural schematic diagram of the angle adjustment speed change assembly of the present invention;

[0021] Figure 4 It is a structural schematic diagram of the adjusting rod and the adjusting hole of the present invention;

[0022] Figure 5 It is a structural schematic diagram of a bidirectional damping rod of the present invention;

[0023] Figure 6 It is a structural schematic diagram of the fixing plate and the main rod of the present invention;

[0024] Figure 7 It is a structural schematic diagram of the inclined wedge telescopic member of the present invention;

[0025] Figure 8 It is a structural schematic diagram of the inclined wedge telescopic member of the present invention;

[0026] Fig. 9 It is a structural schematic diagram of the moving block 1, the advance and retreat block and the insertion rod of the present invention;

[0027] Fig.10 It is a structural schematic diagram of the mounting platform of the present invention.

[0028] Description of reference numerals:

[0029] 100, rotary kiln assembly; 101, kiln; 102, gas distribution cabinet; 103, discharge collection box; 104, lifting platform; 105, base; 200, angle adjustment speed change assembly; 201, driving member; 201a, fixed plate; 201b, slot seat two; 201c, stopper; 201d, limit hole one; 201f, strip hole; 201g, bottom block; 201h, main rod; 201i, limit side rod; 201j, limit stopper; 202, inclined wedge telescopic member; 202a, follower rod; 202b, push block; 202c, limit slot one; 202d, limit convex rod three; 202e, moving block one; 202f, limiting convex rod four; 202g, limiting groove two; 202h, damping bearing; 202i, plug rod; 202j, T-shaped rod; 202k, internal threaded pipe; 202l, screw rod; 202m, twist handle; 202n, advance and retreat block; 203, mounting table; 203a, support rod; 203b, T-shaped groove; 203c, bolt two; 204, two-way damping rod; 204a, limiting groove seat one; 204b, bolt one; 204c, limiting convex rod one; 204d, limiting plate one; 204e, limiting convex rod two; 204f, positioning block; 205, push rod; 206, adjustment rod; 206a, adjustment hole. DETAILED DESCRIPTION

[0030] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0031] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0032] Secondly, the present invention is described in detail with reference to schematic diagrams. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0033] Furthermore, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0034] Embodiment 1

[0035] Reference Figure 1-3 , is an embodiment of the present invention, providing a rotary kiln with variable speed and adjustable inclination angle, comprising a rotary kiln assembly 100, referring to Figure 1 The rotary kiln assembly 100 includes a kiln 101, a gas distribution cabinet 102, a discharge collection box 103, a lifting platform 104 and a base 105, wherein the gas distribution cabinet 102 is arranged on the base 105, the discharge collection box 103 is arranged on one side of the base 105, the lifting platform 104 is arranged on one side of the top of the base 105, and the kiln 101 is arranged on the top of the base 105; the angle adjustment speed change assembly 200, referring to Figure 2 and Figure 3 The angle adjustment speed change assembly 200 includes a driving member 201, an inclined wedge telescopic member 202, a mounting platform 203, a bidirectional damping rod 204, a push rod 205 and an adjusting rod 206. The bottom of the driving member 201 is hinged to the base 105, the top of the push rod 205 is hinged to one side of the bottom of the lifting platform 104, the top of the piston rod of the driving member 201 is fixedly connected to the bottom of the mounting platform 203, the inclined wedge telescopic member 202 is arranged in the mounting platform 203, two pairs of bidirectional damping rods 204 are respectively arranged on both sides of the driving member 201, the bottom of the push rod 205 is fixedly connected to the top of the mounting platform 203, and the adjusting rod 206 is fixedly set on the top of the piston rod of the bidirectional damping rod 204.

[0036] When in use, the angle adjustment speed change assembly 200 is used to push the lifting platform 104, thereby adjusting the inclination angle of the kiln 101. Starting the driving member 201 can push the top rod 205, thereby pushing the lifting platform 104 to adjust the angle. The cooperation of the inclined wedge telescopic member 202, the two-way damping rod 204 and the adjusting rod 206 is used to limit the speed of the top rod 205. Only a small damping is required to limit the speed of the piston rod of the driving member 201. The two-way damping rod 204 on the edge can be removed to achieve the effect of reducing the damping. If a larger damping is required to limit the speed of the piston rod of the driving member 201, multiple two-way damping rods 204 are installed on both sides of the driving member 201. The inclined wedge telescopic member 202 can be quickly installed and disassembled through the mounting platform 203. The inclined wedge telescopic member 202 drives the push block 202b to limit the two-way damping rod 204 adjusted to a height on the driving member 201, thereby increasing the range in which the adjusting rod 206 can limit the speed of the piston rod of the driving member 201.

[0037] Optionally, the driving member adopts a hydraulic cylinder.

[0038] Embodiment 2

[0039] Reference Figure 4-10 , which is the second embodiment of the present invention, based on the same concept as the above embodiment 1, the rotary kiln with variable speed and adjustable inclination angle further comprises: Figure 8 and Fig. 9 A pair of moving blocks 202e are slidably arranged on one side of the inner cavity of the inclined wedge telescopic member 202, and an advance and retreat block 202n is slidably arranged on the pair of moving blocks 202e. A damping bearing 202h is fixedly arranged on one side of the advance and retreat block 202n, and an insertion rod 202i is fixedly arranged on one side of the moving block 202e. The insertion rod 202i moves through Figure 4 In the adjustment rod 206, refer to Figure 7 One side of the wedge telescopic member 202 is fixedly penetrated by an internal threaded tube 202k, a screw rod 202l is threadedly penetrated in the internal threaded tube 202k, and one end of the screw rod 202l is fixedly inserted into the inner ring of the damping bearing 202h; Figure 8 The top and bottom of the inner wall of the inclined wedge telescopic member 202 are provided with a limiting groove 202c, the top and bottom of the moving block 202e are respectively provided with a limiting convex rod 4 202f, the inclined surface of the moving block 202e is provided with a limiting groove 202g, and both sides of the advance and retreat block 202n are respectively provided with a limiting convex rod 3 202d, the limiting convex rod 3 202d is movably inserted into the limiting groove 202g, and the limiting convex rod 4 202f is movably inserted into the limiting groove 202c; refer to Fig.10 A pair of T-shaped slots 203b are respectively provided at the top and bottom of the inner wall of the mounting platform 203, and support rods 203a are respectively provided at the two ends of the mounting platform 203. Figure 7The top and bottom sides of the wedge telescopic member 202 are respectively provided with T-shaped rods 202j, which are movably inserted into the T-shaped slots 203b. The mounting platform 203 and the T-shaped rods 202j are fixedly connected by a plurality of bolts 203c.

[0040] Reference Figure 6 A fixing plate 201a is fixedly provided on both sides of the driving member 201, and a groove seat 201b is fixedly provided on one end of the fixing plate 201a. The top and bottom of the groove side of the groove seat 201b are provided with a stopper 201c respectively. A main rod 201h is slidably provided in the groove seat 201b, and a plurality of limit stopper rods 201j are fixedly provided on one side of the main rod 201h. A plurality of limit holes 201d are provided in the groove seat 201b, and the limit stopper rods 201j are movable through the limit holes 201d. Figure 5 A side of the bidirectional damping rod 204 close to the driving member 201 has a limit plate 204d, and the limit stop rod 201j moves through the limit plate 204d; Figure 7 The other end of the screw rod 2021 is fixedly provided with a screw handle 202m, and the moving block 1 202e is fixedly provided with a follower rod 202a, and the bottom of one side of the follower rod 202a has a push block 202b, and the push block 202b is movably inserted into the groove seat 201b; Figure 6 The two sides of the main rod 201h are respectively provided with a plurality of limiting side rods 201i, and the two sides of the groove seat 201b are provided with a plurality of strip holes 201f, and the limiting side rods 201i are movable through the strip holes 201f; Figure 6 The two side ends of the bidirectional damping rod 204 with a limiting plate 204d are respectively provided with limiting protrusions 204c, and the bidirectional damping rod 204 and the limiting protrusions 204c are movably inserted into the outer side of the driving member 201; the two side ends of the bidirectional damping rod 204 with a limiting plate 204d are provided with limiting protrusions 204e, and the two side ends of the other bidirectional damping rod 204 are provided with limiting groove seats 204a, and the limiting groove seats 204a are movably sleeved on the limiting protrusions 204e; one side of the bidirectional damping rod 204 with a limiting groove seat 204a is provided with a positioning block 204f, and the positioning block 204f and the limiting plate 204d are fixedly connected by bolts 204b.

[0041] Reference Figure 4The adjustment hole 206a has multiple holes for the insertion of the plug rod 202i, and provides multiple limit strokes. The limit convex rod 1 204c facilitates the quick raising or lowering of the bidirectional damping rod 204 on the driving member 201. The limit convex rod 204e and the limit slot seat 1 204a facilitate the quick disassembly of the bidirectional damping rod 204. The bolt 1 204b facilitates the fixing of the two bidirectional damping rods 204. The main rod 201h moves horizontally in the slot seat 201b to adjust the height of the bidirectional damping rod. 204 is limited, and the bottom block 201g is used to pad the bottom of the limiting plate 204d and the limiting groove seat 204a. When the handle 202m is turned, the rotation of the screw rod 202l can be limited by the internal threaded tube 202k. Through the forward and backward movement of the advance and retreat block 202n, the moving block 202e can be extended and retracted on the inclined wedge telescopic member 202 and along the limiting groove 202c, so that the insertion rod 202i can be extended forward or manually retracted, so as to be inserted into the adjustment hole 206a or withdrawn from the adjustment hole 206a.

[0042] When the moving block 202e moves, it can drive the push block 202b forward or backward. While turning the handle 202m, the height of the two-way damping rod 204 can be adjusted. When the push block 202b is inserted into the groove seat 201b, it pushes the limit side rod 201i, and the limit stop rod 201j is inserted into the limit hole 201d and the socket on the limit plate 204d, thereby fixing the two-way damping rod 204.

[0043] When there is no need to adjust the height of the two-way damping rod 204, the limit stop rod 201j can be pulled out from the limit hole 201d. When only a single two-way damping rod 204 is needed, the other two-way damping rod 204 can be removed from the two-way damping rod 204 with the limit plate 204d. The structure of the moving block 202e enables the moving block 202e to have damping when it is stationary, thereby preventing the position of the insertion rod 202i from changing automatically.

[0044] Therefore, the present invention has three states: a zero damping state, in which the insertion rod 202i is not inserted into the adjustment hole 206a; the driving member 201 is not subject to resistance when it is lifted or lowered;

[0045] The first damping state, at this time, the insertion rod 202i is inserted into the adjustment hole 206a, and the driving member 201 is resisted by a bidirectional damping rod 204 when it is lifted or lowered;

[0046] In the secondary damping state, the insertion rod 202i is inserted into the two adjustment holes 206a, and the driving member 201 is resisted by the two bidirectional damping rods 204 when it is lifted or lowered.

[0047] Furthermore, before using the device, you can also choose to add the first or second damping first, and then change the damping during subsequent use to change the adjustment speed of the tilt angle.

[0048] The device facilitates adjusting the inclination angle of the kiln 101 through the cooperation of the driving member 201 and the top rod 205, and facilitates limiting the speed of the expansion and contraction of the piston rod and the top rod 205 of the driving member 201 through the cooperation of the inclined wedge telescopic member 202, the two-way damping rod 204 and the adjusting rod 206. Therefore, it has the effect of limiting the speed of adjusting the inclination angle of the kiln 101 while adjusting the inclination angle of the kiln 101. Only a small damping is required to limit the speed of the piston rod of the driving member 201, and the two-way damping rod 204 at the edge can be removed, thereby achieving the effect of reducing the damping, thereby increasing the speed of the driving member 201 adjusting the angle of the kiln 101; through the cooperation of the moving block 202e, the advance and retreat block 202n, the insert rod 202i, the inclined wedge telescopic member 202, the damping bearing 202h, the internal threaded tube 202k, the screw 202l and the handle 202m, It has the effect of pushing the insertion rod 202i to insert into the adjusting rod 206, so that it is convenient to use the two-way damping rod 204 to limit the speed of the piston rod of the driving member 201. At the same time, the push block 202b can be pushed, so that the main rod 201h with the limiting stop rod 201j is inserted into the limiting hole 201d, thereby limiting the height of the two-way damping rod 204, which plays a role in compensating for the insufficient length of the adjusting rod 206; the two-way damping rod 204 is raised or lowered by the limiting plate 204d, the limiting convex rod 204c, the limiting convex rod 204e and the limiting groove seat 204a, and the two-way damping rod 204 with the limiting groove seat 204a can be removed to achieve the effect of reducing the damping of the piston rod of the driving member 201; the mounting platform 203 is used to facilitate the disassembly and fixation of the inclined wedge telescopic member 202.

[0049] It ensures that the speed can be controlled when changing the inclination angle, and avoids the problem that the inclination angle of the rotary kiln is adjusted too quickly or too slowly, which will cause material flow disorder and affect the heat treatment effect and product quality.

[0050] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), installation arrangement, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present invention. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure of performing the function described herein, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other replacements, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the invention is not limited to a specific embodiment, but extends to numerous modifications still falling within the scope of the appended claims.

[0051] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0052] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0053] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A rotary kiln with adjustable inclination angle and variable speed, characterized in that: include, A rotary kiln assembly (100), the rotary kiln assembly (100) comprising a kiln (101), a gas distribution cabinet (102), a discharge collection box (103), a lifting platform (104) and a base (105), the gas distribution cabinet (102) being arranged on the base (105), the discharge collection box (103) being arranged on one side of the base (105), the lifting platform (104) being arranged on one side of the top of the base (105), and the kiln (101) being arranged on the top of the base (105); An angle adjustment speed change assembly (200), the angle adjustment speed change assembly (200) comprising a driving member (201), an inclined wedge telescopic member (202), a mounting platform (203), a bidirectional damping rod (204), a push rod (205) and an adjustment rod (206), the bottom of the driving member (201) being hinged to the base (105), the top of the push rod (205) being hinged to one side of the bottom of the lifting platform (104), the top of the piston rod of the driving member (201) being fixedly connected to the bottom of the mounting platform (203), the inclined wedge telescopic member (202) being arranged in the mounting platform (203), two pairs of bidirectional damping rods (204) being respectively arranged on both sides of the driving member (201), the bottom of the push rod (205) being fixedly connected to the top of the mounting platform (203), and the adjustment rod (206) being fixedly arranged on the top of the piston rod of the bidirectional damping rod (204); A pair of moving blocks (202e) are slidably provided on one side of the inner cavity of the inclined wedge telescopic member (202), and an advance and retreat block (202n) is slidably provided on the pair of moving blocks (202e). A damping bearing (202h) is fixedly provided on one side of the advance and retreat block (202n), and an insertion rod (202i) is fixedly provided on one side of the moving block (202e). The insertion rod (202i) movably passes through the adjustment rod (206). An internal threaded tube (202k) is fixedly passed through one side of the inclined wedge telescopic member (202), and a screw rod (202l) is threadedly passed through the internal threaded tube (202k), and one end of the screw rod (202l) is fixedly inserted into the inner ring of the damping bearing (202h).

2. The rotary kiln with variable speed and adjustable inclination angle according to claim 1, characterized in that: The top and bottom of the inner wall of the inclined wedge telescopic member (202) are provided with a limiting groove 1 (202c), the top and bottom of the movable block 1 (202e) are respectively provided with a limiting convex rod 4 (202f), the inclined surface of the movable block 1 (202e) is provided with a limiting groove 2 (202g), and both sides of the advance and retreat block (202n) are respectively provided with a limiting convex rod 3 (202d), the limiting convex rod 3 (202d) is movably inserted into the limiting groove 2 (202g), and the limiting convex rod 4 (202f) is movably inserted into the limiting groove 1 (202c).

3. The rotary kiln with variable speed and adjustable inclination angle according to claim 2, characterized in that: A pair of T-shaped slots (203b) are respectively provided at the top and bottom of the inner wall of the mounting platform (203), and support rods (203a) are respectively provided at the two side ends of the mounting platform (203). T-shaped rods (202j) are respectively provided at the top and bottom sides of the inclined wedge telescopic member (202), and the T-shaped rods (202j) are movably inserted into the T-shaped slots (203b). The mounting platform (203) and the T-shaped rods (202j) are fixedly connected by a plurality of bolts (203c).

4. The rotary kiln with variable speed and adjustable inclination angle according to claim 3, characterized in that: Fixed plates (201a) are respectively fixedly arranged on both sides of the driving member (201), a groove seat 2 (201b) is fixedly arranged on one end of one side of the fixed plate (201a), the top and bottom of the groove side of the groove seat 2 (201b) are respectively provided with stoppers (201c), a main rod (201h) is slidably arranged in the groove seat 2 (201b), a plurality of limit stop rods (201j) are fixedly arranged on one side of the main rod (201h), a plurality of limit holes 1 (201d) are arranged in the groove seat 2 (201b), the limit stop rods (201j) movably pass through the limit holes 1 (201d), and a limit plate 1 (204d) is provided on one side of the bidirectional damping rod (204) close to the driving member (201), and the limit stop rod (201j) movably passes through the limit plate 1 (204d).

5. The rotary kiln with variable speed and adjustable inclination angle according to claim 4, characterized in that: A screw handle (202m) is fixedly provided at the other end of the screw rod (202l), a follower rod (202a) is fixedly provided on the moving block 1 (202e), and a push block (202b) is provided at the bottom of one side of the follower rod (202a), and the push block (202b) is movably inserted into the second slot seat (201b).

6. The rotary kiln with variable speed and adjustable inclination angle according to claim 5, characterized in that: The two sides of the main rod (201h) are respectively provided with a plurality of position-limiting side rods (201i), and the two sides of the second slot seat (201b) are provided with a plurality of strip holes (201f), and the position-limiting side rods (201i) are movably passed through the strip holes (201f).

7. The rotary kiln with variable speed and adjustable inclination angle according to claim 6, characterized in that: The two side ends of the bidirectional damping rod (204) having the limiting plate 1 (204d) are respectively provided with limiting protruding rods 1 (204c), and the bidirectional damping rod (204) and the limiting protruding rod 1 (204c) are movably inserted on the outside of the driving member (201).

8. The rotary kiln with variable speed and adjustable inclination angle according to claim 7, characterized in that: The two side ends of the bidirectional damping rod (204) with a limiting plate 1 (204d) are provided with limiting protruding rod 2 (204e), and the two side ends of the other bidirectional damping rod (204) are provided with limiting groove seat 1 (204a), and the limiting groove seat 1 (204a) is movably sleeved on the limiting protruding rod 2 (204e).

9. The rotary kiln with variable speed and adjustable inclination angle according to claim 8, characterized in that: The bidirectional damping rod (204) having a limiting groove seat (204a) has a positioning block (204f) on one side, and the positioning block (204f) and the limiting plate (204d) are fixedly connected by a bolt (204b).

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